+// a class which cleans up any GDI object
+class AutoGDIObject
+{
+protected:
+ AutoGDIObject(HGDIOBJ gdiobj) : m_gdiobj(gdiobj) { }
+ ~AutoGDIObject() { if ( m_gdiobj ) ::DeleteObject(m_gdiobj); }
+
+ HGDIOBJ GetObject() const { return m_gdiobj; }
+
+private:
+ HGDIOBJ m_gdiobj;
+};
+
+// TODO: all this asks for using a AutoHandler<T, CreateFunc> template...
+
+// a class for temporary pens
+class AutoHBRUSH : private AutoGDIObject
+{
+public:
+ AutoHBRUSH(COLORREF col)
+ : AutoGDIObject(::CreateSolidBrush(col)) { }
+
+ operator HBRUSH() const { return (HBRUSH)GetObject(); }
+};
+
+// a class for temporary pens
+class AutoHPEN : private AutoGDIObject
+{
+public:
+ AutoHPEN(COLORREF col)
+ : AutoGDIObject(::CreatePen(PS_SOLID, 0, col)) { }
+
+ operator HPEN() const { return (HPEN)GetObject(); }
+};
+
+// classes for temporary bitmaps
+class AutoHBITMAP : private AutoGDIObject
+{
+public:
+ AutoHBITMAP(HBITMAP hbmp) : AutoGDIObject(hbmp) { }
+
+ operator HBITMAP() const { return (HBITMAP)GetObject(); }
+};
+
+class CompatibleBitmap : public AutoHBITMAP